Răspuns:
b. (x+2)(x+2)
e. (6y+1)(6y+1)
f. ( m+5)(m+5)
Explicație pas cu pas:
x^2 + 4 x + 4 = x^2 +2x +2x +2 62= x (x+2) + 2 (x+2)= (x+2) (x=2) = (x + 2 )^2
36 y^2+ 12 y +1 = (6 y)^2 + 6 y +6 y +1 = 6y (6y+1) + 1 (6y +1)= (6y+1)(6y+1)
m^2 +10m +25 = m^2 +5m+5M+ 5 ^2= m (m+5) + 5 (m+5)= (m+5)(m+5)
